Characterization of Two Ti-Nb-Hf-Zr Alloys Under Different Cold Rolling Conditions

In this study, the chemical composition of Al-0.8Mg-0.8Si alloys was modified with the addition of 0.1 and 0.2 wt.-% Zr. The billets were manufactured by direct chill casting method, homogenized at 560 °C for 6h and then extruded in order to obtain profiles having hollow and circular sections. Recrystallization layer (shell) became narrower due to the addition of Zr. This was attributed to the formation of very fine precipitates (Al3Zr) within the matrix. The mechanical properties showed that both yield and tensile strengths increased as a function of Zr content. Tensile fracture surfaces were examined by scanning electron microscope and the fractographs reflected the effect of grain structure on the fracture behavior of studied alloys. All fracture surfaces indicated typical dimple ruptures, however, the size of dimples were observed as finer structures as a function of Zr content. As seen in cross-sectional graphs, as the Zr content increased the grain structure was refined due to Al3Zr precipitates. These fine precipitates caused the formation of fine and shallow dimples under loading.

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Characterization of phase development in non-isothermally annealed mould-cast and heat-treated Al–Mn–Sc–Zr alloys

Materials Characterization ◽

10.1016/j.matchar.2010.10.006 ◽

2010 ◽

Vol 61 (12) ◽

pp. 1400-1405 ◽

Cited By ~ 20

Author(s):

M. Vlach ◽

I. Stulíková ◽

B. Smola ◽

N. Žaludová

Keyword(s):

Phase Development ◽

Heat Treated ◽

Zr Alloys

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Preparation, structural, microstructural, mechanical and cytotoxic characterization of as-cast Ti-25Ta-Zr alloys

Journal of Materials Science Materials in Medicine ◽

10.1007/s10856-019-6350-7 ◽

2020 ◽

Vol 31 (2) ◽

Author(s):

Pedro Akira Bazaglia Kuroda ◽

Fernanda de Freitas Quadros ◽

Karolyne dos Santos Jorge Sousa ◽

Tatiani Ayako Goto Donato ◽

Raul Oliveira de Araújo ◽

...

Keyword(s):

Zr Alloys

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Al–Zr alloys synthesis: characterization of suitable multicomponent low-temperature melts

Journal of Materials Research and Technology ◽

10.1016/j.jmrt.2019.10.088 ◽

2020 ◽

Vol 9 (1) ◽

pp. 594-600 ◽

Cited By ~ 1

Author(s):

Emília Kubiňáková ◽

Vladimír Danielik ◽

Ján Híveš

Keyword(s):

Low Temperature ◽

Zr Alloys

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Photocurrent spectroscopy applied to the characterization of passive films on sputter-deposited Ti–Zr alloys

Corrosion Science ◽

10.1016/j.corsci.2008.04.014 ◽

2008 ◽

Vol 50 (7) ◽

pp. 2012-2020 ◽

Cited By ~ 34

Author(s):

M. Santamaria ◽

F. Di Quarto ◽

H. Habazaki

Keyword(s):

Passive Films ◽

Photocurrent Spectroscopy ◽

Sputter Deposited ◽

Zr Alloys

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Phase Transformation Behavior and Mechanical Properties of Ti-Mo-Sn Alloys

Materials Science Forum ◽

10.4028/www.scientific.net/msf.747-748.855 ◽

2013 ◽

Vol 747-748 ◽

pp. 855-859

Author(s):

Xiao Xue Chen ◽

Shun Guo ◽

Xin Qing Zhao

Keyword(s):

Mechanical Properties ◽

Cold Rolling ◽

Cold Deformation ◽

High Strength ◽

Mechanical Tests ◽

X Ray Diffraction ◽

Superior Mechanical Properties ◽

Low Modulus ◽

Mo Content

A series of Ti-Mo-Sn alloys with different Mo contents from 7% to 15% (wt. %) were prepared, and the effects of Mo content and thermo-mechanical treatment on their microstructural evolution and mechanical behavior were investigated. The experimental results indicated that the β to α martensite transformation can be effectively suppressed with increasing Mo content. After cold rolling treatment, superior mechanical properties and low modulus were achieved in Ti-8Mo-4Sn alloy, with tensile strength of 1108MPa, yield strength of 1003MPa and low Youngs modulus of 53GPa. The influence of severe cold deformation on the macrostructure and mechanical properties was discussed based on the characterization of X-Ray diffraction and mechanical tests. It was demonstrated that the cold rolling induced fine α martensite and high density dislocations lead to the high strength of the Ti-Mo-Sn alloys. The fine α martensite as well as the β matrix with low stability guarantee low Youngs modulus.

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